ScrollView is not working in android

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http://stackoverflow.com – I want to know why ScrollView is not working in this Source. The tap in this source has Calendar and EditText. If I click EditText and softKey pops up, I want to scroll. <ScrollView xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="fill_parent" android:fillViewport="true" android:id="@+id/scroll" > <LinearLayout android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" (HowTos)